Typewriting machine



June 19, 1928. 1,674,363

G. F. HANDLEY 'IE'YPEWRITING MACHINE Filed Dec. 1, 1926 2 Sheets-Sheet 17 June 19, 1928. I

G. F. HANDLEY TYPEWRITING MACHINE Filed Dec. 1, 1926 2 Sheets-Sheet 2Patented June 19, 1928.

GEORGE F. HANDLEY, OF GLENDALE, NEW YORK, ASSIGNC R TO ROYAL TYPEWRITERCOMPANY, INC., OF NEW YORK, N. Y., A CORPORATION- OF NEW YORK.

TYPEWRITING MACHINE.

Application filed December 1, 1926'. Serial No. 152,013.

This invention relates to an improved type action which is of thegeneral character'of the type action used in the well-knownRoyalmachine, but permits the use of flat sheet metal links of uniform lengthfor connecting all of the key levers with the front links of the typeaction.

In previous constructions, the links which have connected the key leversto the front links have been made of wire, but in order that adjacentconnections might not interfere, it has been necessary to make thelooped ends of the links with small and sharp loops. Because of thisfact it was necessary to place the holes for said links very close totheedges of the key levers and the front links.

By the employment of a flat sheet metal link and the proper location ofthe connecting holes in the key levers and front links,

it is possible to employ connecting links which are identical for allbanks of the key levers and for all type actions of themachine.

In the drawings:

Figure l is a longitudinal section of a portion of a typewriting machinedisclosing the present invention.

Figure 2 is a side view on an enlarged scale of a portion of the varioustype actions.

Figure 3 is a side view of a key lever of the third or next to thelowest bank. I

Figure 4: is a similar view of a key lever of the second bank.

Figure 5 is a similar view of a key lever of the top bank. I i

Figure 6 is a fragmentary view of the difference in the form ofthe'heels of the type bars at the center and extreme sides of thesegment. 1

The invention is illustrated in a typewriting machine having a frame Ein which is mounted a carriage F supporting a platen f against the frontof which strikes type bars Gr which are pivoted in the type segment toturn about an axis 9. A series of front links H, H are provided andthese are all pivoted upon a rod Iatthe front of the machine. The linksH are longer than the links H and have their rearward and downwardlyturned ends of a slightly diflerent form. The links H and H arealternately arranged throughout the greater portion of the series oftype action and the longer links H are connected to normal to the thirdand lowest bank of key levers, while the shorter links H are connected"to the top and second banks of key levers. A plurality of longer links Hare placed at. each extreme side of the series of type actions. All ofthese front links are returned position by the usual returning springsh. T

The front links are connectcdto the heels of their respective type barsby links K and a reference to Figure 6 will show that the center typebars have a heel L which is formed somewhat differently from the heel Lof the type bars at the sides of the series of type'actions. Thisarrangement is shown in Patent No; 1,669,167 and is not specifi-- callyclaimed herein. The purpose thereof is to assist in obtaining a uniformdip of the key levers throughout the whole series and in all four banks.

The key levers are arranged in four banks and are designated as A, B, Cand D from the top to the bottom. They are all pivoted to turn about acommon pivotal axis M.

The construction thus far described is or may be identical with thatemployed in the well known Royal machine. In previous constructions,however, the key levers and the front links have been connected as shownin the above mentioned patent or by connecting links of various lengthswhich have been pivoted at their ends to the front links and the keylevers respectively. The prime purpose of this invention is to provide aseries of connecting links N, all of which are identical in sizeandshape and which are pivotally connected at their ends to the keylevers and the front links respectively. A

uniform dip in the key levers of the various banks and a uniformaction'throughout the whole series of type bars from the center to thesides is obtained by varying the pivotal points of connections of thelinks N with the key levers and the front links.

As shown in Figure 2, the links. N. are connected to the front links atfour diiferent points which lie in a horizontal plane but are placed atdiffereut distances from the pivotal axis of the front links. Similarlythe links N are connected to the key levers of the four banks at fourdifferent points, but these points lie in the arc of a circle which isstruck from the pivotal axis M of the key levers as a center I but aredifferently positioned in a vertical lane.

The top blank ofkey levers A is connected to the shorter front links Hby links N which are connected to the front links at points a and to thekey levers at points a The point a is the farthestfrom the pivot of thefront link and the point a is the farthest from the lower edge of thekeylever' A. The second row or bank of key levers B is also connectedto'the short lin'ksH by links N which are pivoted tothe front linksat'points' b slightly nearer to the pivotal axis of the front link andto the key lever at point's' slightly closer to the lower edge ofsaichkey lever.

Thethird row or bank of key levers is connected to front links H bylinks N which are pivoted to the front links at points 0 still closer tothe pivotal axis of the front link" and to the key lever at points 0still nearer to the edgethereof. Th'e'lowest bank of key levers D isconnectedto front links H links N which are pivoted to the front linksat the points (Z' which are the closest to the pivotal axis of thefront'links and to the key levers at points d which are the closesttothebOttOm edge of the key levers. I

By the above described arrangementit has been'foiind possible to use aseries of connectmg links N which are uniform in size and shapeand atthesame time obtain a uniform clip" for all of the keys of the keyboard.It

be'n'ote'd that one end of'the connecting 7 since all' of, the actionsmaybe assembled 7 machine;

separately hef'ore'they are mounted in'the be able to manufacture theconnecting" links of a single uniform s ze. Moreover, afiat link pivotedto the key lever and the front link as shown in this case is found totesuperior in operation to the old form of wire link which is hooked atits ends into the respective parts. Minor changes may be made" in theprecise construction and a principal may be employed in type actions ofasomewhat different character without man way departing from the spiritof the invention which is to be regarded as limited only by the scope ofthe appended claims. 2 i

I claim as. my invention:

series of type actions each of which comprisesa key lever, a front linkconnected to atype bar, and a connecting link pivoted to the key leverand the front link, the connect'ing links of the entire series being ofthe It is also a marked advantage to 7 3. A" series'ot type"scaring-east of which comprises a key lever, a? front link cennecte d toa type bar, and connecting link pivoted to'the key lever and thefront-link, the ciiii niecting; links of the entire enes being'off thesame length but connectedtto the 'fi on t links at points whichdifferin" distance from" the pivot'ahaziis or'then-cnr links; at eachbank of key levers.

i; A series of type actions each of which'; comprises key lever, aifrontlink connected toa typebar, and a1 conn'ectinglink pivoted to the keylever and the front link, the c'on necting links of the entir e' seiies"being of the same length' bnt connected to thekeyfl levers at differentvertical points;

5; A series of type actionsf each of which comprises'a key lever, afront'link connected'i to a type'loar, and a" connecting link pivoted tothe key lever and'th'efront link, the con nectinglinks of the entiresen-setting ofthesame length hiit connected'to the key levers atdifferent vertical points for each bank of key levers, said pointsbeingtlie' saine distance' from'the pivotal axisof the key levers,

6. A series" of typeactions each 0f witch comprises a key lever, a frontlink connected to a" type ha'r, anda connecting'link' pivoted to the keylever and the front liiiln'the con: necting links of the" entireseiiesbeifigfof the same length tat: Connemara the front links at pointswhich vary in distalrice; from; the pivotal axis of the front links foreaclrhank of key'levers, andtothe keylevers at different vertical pointsfor each bank of key levers. y

7. A series of type" actions each Ofvvhich comprises a key lever, afront link connected to a type bar, and a, connectinglinkpivoted tothe-key lever andthe front link, the "connecting'liiiksof the entireseriesheing jof the same length but connected td' the front 1inksmointswhich lie" in a horihonta'f line but vary in distance from the pivotalaxis of the front links. for each bankiof key levers, and" to the keylevers at points atlthe'same distance from th'e pivotal axis of the keylevers but at different points from: the edge of the key levers. v 4 e8. A, series of ype actions each'ofiwhioh comprisesa key lever, a; frontlink connected to a type bar, and aconh cting link pivoted to the keylever and the front link, thecoiiat points progressively nearer thepivotal axis of the front links for key levers of the top to bottom rowsrespectively.

9. A series of type actions each of which comprises a key lever, a frontlink connected to a type bar, and a connecting link pivoted to the keylever and the front link, the connecting links of the entire seriesbeing of the same length but connected to the key levers at pointsprogressively nearer the lower edgeof the key levers from the top to thebottom rows respectively. 7

10. A series of type actions each of which comprises a key lever, afront link connected to a type bar, and a connecting link pivoted to thekey lever and the front link the connecting links of the entire seriesbeing of the same length but connected to the front links at pointsprogressively nearer the ivotal axis of the front links and to the keyevers at points progressively nearer the lower edge of the key leversfrom the topvto the bottom rows respectively.

11. A series of type actions each of which comprises a key lever, afront link connected to a type bar, said front links being alternatelylong and short, and a connecting link pivoted to the key lever and thefront link, the connecting links of the entire series being of the samelength and the links for the top and second banks of key levers beingconnectedto the short front links and key levers at different points ofeach for each bank, and the links for the third and lower levers beingconnected to the banks of key long front links and key levers atdifferent points of each for each bank.

12. A series of type actions each of which comprises a key lever, afront link connected to a type bar, said front links being alternatelylong'anol short, and a connecting link pivoted to the key lever and thefront link, the connecting links of the entire series being of the samelength and the links for the top and second banks of key levers beingconnected to the short front links and key levers at difierent points ofeach bank, and the links for the third and lower banks of key leversbeing connected tothe long front links and key levers at differentpoints of each for each bank, the points of attachment to the frontlinks progressively approaching the pivotal axis of the front links, andthe points of attachmentto the key levers proiressively approaching thelower edge of the ey levers.

In testimony whereof, I have hereunto subscribed my name.

GEORGE F. HAN DLEY.

